Category Archives: Guest Posts

Carlos Explores the Sony ICR-N20: A Unique Radio Nikkei Experience from Brazil

Many thanks to SWLing Post contributor, Carlos Latuff, who shares the following guest post:


SONY ICR-N20 Quick Review

by Carlos Latuff

In the last century, several Japanese electronics manufacturers such as Sony, National-Panasonic, Hitachi, and Sanyo produced radio receivers aimed at the Japanese public and which had a peculiar characteristic: they came with crystal lock, preset frequencies from Radio Nikkei, which in the past was known by the acronym NSB (Nihon Shortwave Broadcasting) or “Radio Tampa”. For more information about this station, check out this post.

One of these models is the Sony ICR-N20, which, based on the date of the instruction manual I found on the Internet, must have been produced in the late 1990s. The device measures 150 mm × 75 mm × 36 mm and weighs 400 grams (with batteries). It has a 6.6 cm speaker (8 ohms) and a headphone output.

This device is analog and operates on the following frequencies:

Shortwave:

  • NSB1 3.925 MHz, 6.055 MHz, 9.595 MHz
  • NSB2 3.945 MHz, 6.115 MHz, 9.760 MHz
  • MW: 530 kHz ? 1.605 kHz

Currently, Radio Nikkei only broadcasts on two frequencies: 6.055 and 6.115 MHz.

It has a 7-segment telescopic antenna. No input for an external antenna.

It works on electrical power (DC 4.5 V) or 3 AA batteries.

As it’s primarily intended for the Japanese market, the buttons and dial panel are written in Japanese.

I have no complaints about the selectivity and sensitivity of the Sony ICR-N20 when it comes to medium waves. At night, in Porto Alegre (in the extreme south of Brazil), it was possible to receive (indoor) stations from Uruguay, Paraguay and Argentina, but due to its proximity to these countries, this is not such a difficult task. It’s not a receiver for the most ardent DX fan, but it does a good job of being a radio for regular, everyday listening.

In the case of shortwave, I was able to receive the signal from Radio Nikkei 1 and 2 close to the Guaiba waterfront. The signal from active frequencies is weak, but audible. With favorable propagation, the reception is sometimes surprising. Following the instructions in the instruction manual, I used a long wire antenna for better reception.

In my region, the most favorable propagation window is between 08:45 and 09:15 (UTC), and yesterday, for example, February 7, 2025, the signal reached well until 10:00 (UTC). On other frequencies, it is even possible to hear other stations, such as China Radio International, and even amateur radio interference. Remember that this is not a radio receiver with all shortwave frequency bands, but only those in which Nikkei Radio 1 and 2 operate.

Here are some of the listenings made with this receiver.

Radio Nikkei 1: February 7, 2025

Radio Nikkei 1: February 7, 2025

Radio Nikkei 1: February 4, 2025

Listening Session Video

What’s in the Box? Bob Colegrove Investigates the Forgotten Extras of Your Radio

What’s in the Box?

Itemized by Bob Colegrove

Not one to throw anything away, I tend to save ‘the box it came in’ for many new purchases.  The other day I decided to organize all my radio boxes.  Besides the radios themselves, they usually contain a selection of “goodies,” which can include, cases, power adapters, USB cables, batteries, earbuds, antennas, manuals, and so forth.

I generally do not use much that is included in the box.  Over time, however, some of the paraphernalia has gotten scattered around, and my recent effort was intended to corral and sort the accessories.  My experience is itemized below.

Cases

The cases are invariably the largest accessories in the box.  These are sometimes firm, faux-leather enclosures with a zipper around the edges.  I prefer the soft, pliable pouches which seem to function more easily and take up less space.

The Sony ICF-2010 and -2001D did not include cases.  To give the radio some protection during travel and storage, I fabricated a ‘sock’ out of an old bath towel and some hot glue.  The so-covered radio was then inserted into a travel bag along with earphones and anything else I needed.  This worked very well over the years; so well that I extended the concept for some of my smaller radios, which came with cases.

Homemade socks for a PL-880 and ICF-2010 could even be color-coordinated with the rest of your gear.

Power Adapters and Batteries

The following is not intended as the definitive treatise on power adapters and batteries.  Enough guidance has been provided by others.  The takeaway here is that, if you ever refer to the radio’s manual, this is the occasion to do so.  Ensure you know how your radio was designed and the proper way to power it.

In my collection of portable radios there are several combinations of power adapters and batteries.

  • Some radios came with power adapters and others didn’t.
  • Some radios came with batteries and others didn’t.
  • Some just came with USB charging cords.
  • Some were intended for both chargeable and nonchargeable batteries.  Others were intended only for alkaline, nonchargeable batteries, in which case the power adapter disconnects the battery from the circuit and is only used to power the radio.

An adapter might be used to power the radio, recharge batteries, or both.  It’s hard to believe in these days of switching power adapters that an adapter could ever be used to listen to AM radio, but that was the case with the Sony ICF-2010/2001D and Grundig Satellit 800.  These radios came with a more costly transformer adapter which produced very little discernable noise.  Manufactured in pre-rechargeable alkaline days; however, the adapter did not provide a battery charge function.  Over the years, I have mostly used these radios in-house.  They tend to be D-battery-hungry, and so they are usually powered via the adapters.

When Sony got around to producing the ICF-SW7600GR, they took a different approach.  They simply figured it was a small, portable radio, and would mainly be used with batteries.  So, there is a power port for an optional 6-volt adapter, but no included adapter.

The OEM batteries aren’t always the best, so I have an extra supply of rechargeable NiMH and lithium batteries which I cycle through my radios, and the originals are simply included in the rotation.  The NiMH batteries that came with the Tecsun PL-600, -660, and -680 only had 1000 ma capacity and tended to self-discharge quickly after a year or two of use.  However, they got you started.

I have always wondered about using NiMH batteries in radios intended only for alkaline batteries – mainly older ones.  There is a 20-percent reduction in voltage.  How does this affect the performance of the radio?  I suppose this can only be answered on a case-by-case basis.  As an example, I have used NiMH batteries in the Sony ICF-SW7600GR from the very beginning with no apparent degradation.  However, on the XHDATA D-219 and D-220, the difference is quite noticeable.  For some radios, the battery type is switchable, and one must be careful not to connect a power adapter to recharge alkaline batteries.

Earbuds

If you’re serious about radio, you have a good set of earbuds or headphones.  I would venture to say the supplied earbuds for each of my radios are still in the box in their original wrapping.  I don’t get along well with earbuds.  They are hard to install in what apparently are my constricted ear canals and are always falling out.  Several years ago I purchased a set of quality over-the-ear headphones.  Not the most convenient for travel perhaps, but great for reproducing sound and mitigating outside noise.  Grundig went so far as to include a set of over-the-ear headphones with the Satellit 800.

Antennas

Most new portables come with 20- to 25-ft long wire external antennas having 3.5-mm plugs for connection to the external antenna jack.  Sometimes a plastic ‘clothespin’ is attached to the remote end of the wire for mounting.  For convenience, some of these wires are contained in a tape-measure-style spool.  These antennas are quite useful for the non-tinker and traveler, as they provide a means to extend the range, particularly on shortwave.

The C. Crane wire terminal antenna adapter, included with the Skywave SSB 2, is a boon to anyone without a soldering iron or otherwise not inclined to use one.  Other manufacturers take note.  A #2 Phillips screwdriver, and knife to strip the wire insulation are all you need for extensive antenna experimentation.

Source:  C. Crane Skywave SSB 2 Instruction Manual, p. 30.

Sony packed not one, but two 3.5-mm external antenna plugs with each ICF-2010/2001D.  The concept was the same as the C. Crane wire terminal antenna adapter.  These had wire pigtails ending in screw terminals for an antenna and ground wire of your choice.

External antenna adapter (1 of 2) packed with the Sony ICF-2010 and -2001D

A caution here.  The RF amplifier for LW, MW, and SW on the 2010 is an unprotected FET (Q303), which is notorious for failing due to electrostatic discharge from an external antenna.  Early on, your author was twice bitten by this snake.  There may be other radios that suffer from this vulnerability.

Straps

The strap is arguably the least useful accessory included with any portable radio.  The Sony ICF-2010/2001D came with a very attractive blue over-the-shoulder web strap, which has become something of an “item” among collectors.  Mine have been bound up in their original wrapping and stored away for 40-plus years, and might yield the cost of a new portable radio should I ever decide to auction them on the Internet.  I have never used them on either of my 2010s simply because I can envision the priceless radio dangling pendulously at the end of the strap waiting to meet disaster through contact with an immovable door jam.

The same goes for smaller radios which almost always include an obligatory wrist strap.  Perhaps these should not be classified as accessories, as they are permanently attached to the radio.  I avoid using them for the same reason as sited for the 2010s.  Besides, they just get in the way.  These straps are usually anchored inside the case, but I can’t bear to cut them off; so, I have just lived with them.  In the few cases where I have opened the case, I have omitted reinstalling them.  Instead of having a strap, how about a collapsible “lunchbox” handle?  I can even envision one of these being developed into a dual-purpose handle/antenna.

Manuals

Don’t forget the manual.  We’ve gotten away from manuals.  People don’t use them, and they are a manufacturing expense.  Besides, you can find your answer on the Internet.

As a retired technical writer, however, I have a strong respect for a well-crafted technical manual.  Besides actually using them, I unconsciously evaluate them.  Unfortunately, most are written as an afterthought – an attempt to forestall customer enquiries.  “Read the manual.”  The problem is compounded by radios intended for a worldwide market, wherein the manuals are authored by writers who labor under the handicap of having English, French, Spanish, German, etc. as a second language.

There are also situations where the printing is too small or the fanfolds too inconvenient.  My standard practice is to download an electronic copy of each manual, print it out in 8 ½” × 11” format, and put it in a comb or 3-ring binder.  This is easier on aging eyes, and more suitable for adding my own notes.

…and so forth

Besides the common accessories described above, some unique items have been included over the years.  For example, Tecsun has packaged very nice 20-inch by 30-inch charts with some models.  One side contains a world map showing amateur call areas.  The other side is an enlargement of the radio with each button or control function described.

Going back a few years, Sony included a slick publication called the Wave Handbook with some of their radios.  These had convenient station vs. time charts for world band radio.  The charts were like those published in frequency vs. time format in Passport to Worldband Radio.  The booklets were published in several editions over the years, but obviously, these were time sensitive and became outdated rather quickly.  Still, they could pique the interest of folks new to SWLing.

Packaging

Finally, there is the box the radio came in and any accompanying wrapping.  The packrat DNA in me usually demands that I keep all this.  It can speed up the sale or otherwise increase the value of the radio, if you ever decide to sell it.

Which radio accessories do you use?

Would you like an option to buy the radio without any accessories?

Beatles, Bigfoot and Skybird

Good day all SWLing Post community! FastRadioBurst 23 here with what Imaginary Stations will be bringing you this week for your listening pleasure.

On Saturday 8th February 2025 at 1200 hrs UTC on 6160 kHz and also on Sunday 9th February 2025 at 1000/1400 hrs UTC on 6160 kHz and at 2100 UTC on 3975 kHz via Shortwave Gold we’ll be bringing you Beatles to Bigfoot, a show with the songs of Lennon/McCartney covered in a way you’ve never heard before, beatles soundalikes, plus UFOs, flying saucers and if all goes well a Yeti Choir (*subject to availability and time constraints). It’s a odd mixture but a very nice odd mixture.

On Wednesday 12th February 2025 at 0300 UTC via WRMI we bring you a special archive edition of Free Radio Skybird. Fly Skybird fly!

Also we need your help again to cover our production and transmission costs like we did in 2024. Even if you can only spare a couple of dollars it still helps bring our shows to the shortwaves. Heartfelt thanks from all of the Imaginary Stations crew goes out all the folks who have sent us generous donations in the past!

For more information on all our shows, please write to [email protected] and check out our old shows at our Mixcloud page here.

Don Moore’s Photo Album: Guatemala (Part One) – The East

Many thanks to SWLing Post contributor Don Moore–noted author, traveler, and DXer–for the latest installment of his Photo Album guest post series:


Don Moore’s Photo Album: Guatemala (Part One) – The East

by Don Moore

More of Don’s traveling DX stories can be found in his book Tales of a Vagabond DXer [SWLing Post affiliate link]. If you’ve already read his book and enjoyed it, do Don a favor and leave a review on Amazon.

I’ve wanted to do a feature on Guatemala ever since starting this series a few years ago. From a cultural perspective it’s one of the most fascinating countries in Latin America. About half the population are indigenous, primarily Mayan, and most of them still speak their own languages. For several decades Guatemala’s religious broadcasters – Roman Catholic and Evangelical Protestant – used many of those languages on shortwave where we DXers were able to hear them.

I made five visits to Guatemala from 1982 to 1984 while in the Peace Corps in Honduras and returned in December 1987 while in graduate school. I spent enough time in Guatemala that there’s an entire section of my Vagabond DXer book filled with stories of my travels and station visits. In this seven-part series you get to see the pictures.

The map below shows the country, minus the sparsely populated northern department of Petén. We’re going to start in the least interesting part of Guatemala, the east. There’s very little indigenous culture left in that region nor much else of interest to the visitor. But you do have to pass through it to get from Honduras to the rest of Guatemala … and there were some radio stations to visit.

The main border crossing between Honduras and Guatemala has always been near Esquipulas in southern Chiquimula department. (That’s where the header photo comes from). But about 40 kilometers to the north is a secondary crossing near the town of Jocotán. In the 1980s, the road was rough and unpaved and the best mode of transportation was hitching a ride in the back of a passing pickup truck. The border consisted of just two wooden shacks, one on each side, minded by bored soldiers. That’s where I entered Guatemala on my second visit in June 1983. Jocotán had a radio station that I wanted to visit.

Eastern Guatemala may not have had much of interest, but the large Mayan ruins of Copán are just across the border in Honduras. The most direct route there from Guatemala City is via Jocotán so typically a few backpackers pass through town every day. I found a room at the Pension Ramirez. At $1.50 a night it was the perfect place for Peace Corps Volunteers, backpackers, and others at the very bottom end of the budget travel scale. I got a bed with sheets that may have been washed within the past week, a table, a chair, and a dim light bulb hanging from the ceiling. The shared bathroom was down the hall. Cold water only. But the Pension Ramirez had one thing that I never encountered at any other such lodging. The owner had a business card.

Jocotán was home to Radio Chortís, a Roman Catholic broadcaster that mostly ministered to the Chortí Indians who lives in the region. As most of the Chortí had assimilated into the dominant Spanish culture the station primarily broadcast in Spanish with just a few hours in the Chortí language each week. Radio Chortís used to put a strong signal into North America on 3380 kHz. The station was part of a mission funded by donations from Belgian and West German Catholics. The studios and offices were in a large complex that also included vocational training facilities and a print shop for the church. That explained why the back of their QSL letters always had a colorful station graphic.

Radio Chortís, 3380 kHz, as heard in Pennsylvania 30 December 1979 at 1152 UTC:

On to Cobán

Early the next morning, I took a bus to Chiquimula, the departmental capital. DXers may recognize the town as the location of Radio Verdad, the last active shortwave broadcast station in Central America. It came on the air long after my time there so I never got to visit the station. In Chiquimula I switched to a bus bound for Guatemala City, but that wasn’t my final destination. I got off at a little crossroads just before the town of El Progreso and then boarded the next bus heading north to Cobán, capital of Alta Verapaz.

In Cobán I planned to visit another Catholic broadcaster, but one with a rather unusual name for a religious station. In the 1520s, the Spanish conquistadores quickly overran most of Guatemala but the Kekchi Indians in their mountainous homeland proved impossible to defeat. The Spanish dubbed the region Tezulutlán from an archaic Spanish phrase that meant “Land of War.”

In the 1540s, the Spanish tried another method to subdue the region, this time allowing Dominican friars under Bartolomé de las Casas to attempt to convert the Kekchi to Catholicism. Where the soldiers had failed the padres succeeded and the newly pacified region was renamed Verapaz, or Land of True Peace. Bartolomé de las Casas was a good man who left a legacy of trying to protect the rights of the Indians in a time of brutal conquest. But he was just one man in a time of boundless greed. He left the region a few years later and the Kekchi were forced into peonage just as the Mayans elsewhere in Guatemala had been.

And so four centuries later when the Roman Catholic diocese in Verapaz, the land of true peace, set up a radio station they named it Radio Tezulutlán, after the land of war. Someone had a keen sense of irony. But maybe there is something symbolic there as well. The Kekchi, after all, have survived as a people with their own language intact. Today they number over half-a-million, or almost eight percent of the Guatemalan people. That Radio Tezulutlán broadcasts primarily in Kekchi, not Spanish, might just be a final victory for the Kekchi.

The next few pictures show the Radio Tezulutlán building and studio from 1983 and the QSL card and pennant that I picked up on my visit. The QSL was for their little-used frequency of 3370 kHz. They mostly used 4835 kHz.

Radio Tezulutlán, 4835 kHz, as heard in Pennsylvania on 24 December 1979 at 1153 UTC:

More Broadcasters in Verapaz

In Santa Bárbara, Honduras, where I was living in 1983, one of the best heard Guatemalan medium wave stations was Cobán’s Radio Norte on 680 kHz. I stopped by in the evening hoping to pick up a QSL but the only person there was a lone announcer who was too busy to help me. I may not have gotten the QSL but I did pick up something that I’ve since come to see as even more valuable.

In my book, I explain how one of the primary sources of income for small town radio stations in that era was reading personal announcements and greetings on the air. The Radio Norte announcer had a stack of forms that listeners had filled out with messages to be read on the air. He was throwing away some that had already been read, so I took one.

The form could be either mailed to the station or hand-delivered, as this one apparently was. The message is a birthday greeting from Imelda to her son Mario Agusto. At the top, the date the message is to be read is listed and the place is listed as San Juan Chamelco. This is important as the announcer would first say something like “Atención! San Juan Chamelco!” to get the attention of listeners in that town. At the bottom are instructions as to when the announcement should be read – the 18:30 marimba music show. The form is a very unique radio station souvenir. I only wish I had taken the entire pile out of the trashcan.

Radio Norte, 680 kHz, recorded in Cobán during my June 1983 visit:

I also made a side trip to the neighboring town of San Pedro Carchá where I got a sort-of-QSL from Radio Imperial on 925 kHz. If you’ve read my book you know that a picture of the secretary would be a lot more interesting than this one of the front door.

A New Shortwave Station

For thirteen years the Roman Catholic church and Radio Tezulutlán had the Kekchi language airwaves all to themselves. But Evangelical Protestantism had been gaining ground in Guatemala for several decades and in 1988 the Evangelical station Radio Kekchi began broadcasting on the shortwave frequency of 4845 kHz. Radio Kekchi must have had friends at the Ministry of Communication as that assigned frequency was just 10 kHz above Radio Tezulutlán’s 4835 kHz. That certainly made it easier to poach listeners from the competition.

In one more bit of strangeness, Radio Kekchi was located sixty-five kilometers northeast of Cobán in the town of Fray Bartolomé de las Casas. So the Evangelical radio station was put in a place named after the priest who originally converted the Kekchi to Catholicism. Maybe the region should be renamed The Land of Irony.

Radio Kekchí, 4845 kHz, as heard in Ohio on 5 September 1988:

Language or Dialect?

In much of the common literature about Guatemala it says that the indigenous people speak Mayan dialects. And back in the day when these stations were active on shortwave, DXers’ loggings often referred to hearing Mayan dialects. But I called Chortí and Kekchi languages, not dialects. What’s the difference?

Linguistically, a dialect is a regional variation of a language. The different dialects of a language are always mutually intelligible. American and Britons speak different dialects of English but have no trouble understanding one another except for the occasional confusion over a word or phrase. Speakers of Spanish and Portuguese can understand one another a little bit but not enough to have a real conversation. Those are distinct languages.

On the other hand, Danes, Norwegians, and Swedes have no trouble carrying on a conversation with each speaking their own language. That’s because linguistically they are speaking dialects of the same language. So why are Danish, Norwegian, and Swedish considered different languages? Linguist Max Weinrich once explained “a language is a dialect with an army and a navy.” He might have added an economy, a government, and international respect.

Languages spoken by people who are held in low prestige are often called dialects not for any linguistic reason but simply out of prejudice. It’s a subtle way of indicating these people and their culture are of less importance. This is true not only of Guatemala’s indigenous languages but of many others around the world. Chortí, Kekchi, Quiché, Cakchiquel, and all the other two dozen indigenous languages of Guatemala are just as distinct from one another as are Spanish, French, and Italian. So show them some respect. Call them languages, not dialects.

A DX Oddity

Let’s end part one of this series with an unusual bit of radio history. Aeronautical beacons are stations that broadcast a short morse code identifier over and over. Pilots use them for direction finding in lining up with the runway during bad weather. Today these are only found in the longwave band but there used to be a handful of Latin American beacons on frequencies just above the old top of the medium wave band. One of those was RAB on 1613 kHz at Rabinal, about 45 kilometers south of Cobán. It used to be an easy catch all over North America, but here’s a recording I made of it in nearby Honduras.

Beacon RAB, 1613 kHz, as heard in Santa Bárbara, Honduras, on 12 November 1982 at 0508 UTC:

Next: Part Two – Guatemala City

Links

A shortwave mystery on the 45th Parallel

Good day all SWLing Post community far and wide! FastRadioBurst 23 here with what Imaginary Stations will be bringing you this week for your shortwave listening pleasure.

On Saturday 1st January February 2025 at 1200 hrs UTC on 6160 kHz and also on Sunday 2nd February 2025 at 1000/1400 hrs UTC on 6160 kHz and at 2100 UTC on 3975 kHz via Shortwave Gold we’ll be bringing you WMMR, another show where the listener has to guess what the theme is. Tune in and let us know what you think it is. It could be anything from dreams, the bus stops or apple orchards but we are not giving away any clues, you will have to decide.

On Wednesday 5th February 2025 at 0300 UTC via WRMI we have our yearly 45th Parallel Midwinter broadcast. As it says on the special press release direct from the Imaginary Stations HQ in special gold print: “Enjoy a unique programme of music and messages for anyone who lives on, above or below the 45th parallel”. It will be great so do listen in!

For more information on all our shows, please write to [email protected] and check out our old shows at our Mixcloud page here.

Don Moore’s Photo Album: Museum Findings – World War II

Along US Highway 550 in southwest Colorado

Don Moore’s Photo Album
Museum Findings: World War II

by Don Moore

More of Don’s traveling DX stories can be found in his book Tales of a Vagabond DXer

Learning should be a life-long pursuit for all of us. One of my ways of doing that is by visiting museums while traveling, whether in the USA or abroad. Cultural, historical, and science museums are my favorites. And if a museum’s theme includes the 20th century, there is a good chance that something related to radio will be found in the collection. In this edition of the Photo Album I want to share some findings related to radio and World War II that I’ve recently found in museums here in the USA.

Do A-Bombs QSL? 

I’m based in Pennsylvania but my daughter lives in western Colorado and my son in Texas. So in September and October of 2024 I made a 45-day road trip to visit them both and see sites along the way. One stop was Santa Fe, New Mexico. The New Mexico History Museum downtown has an excellent exhibit on the development of the Atomic Bomb and the effect on the local area. The real place to learn about this, however, is an hour north of the city at Los Alamos, where the project actually happened.

In addition to the historical sites, Los Alamos has one of the best science museums I’ve been to anywhere. That’s not surprising considering that not many places have as many scientists per capita as Los Alamos does. And there I learned that radio was closely involved in dropping the first A-Bomb on Hiroshima.

The scientists at Los Alamos developed two types of atomic bombs. The bomb dropped on Hiroshima used a uranium-gun to initiate the explosion. The scientists were certain this would work so this was not tested beforehand. The bomb dropped on Nagasaki used the second method with a with a plutonium-implosion as the trigger. But they were uncertain as to whether or not this would actually work so it had already been tested in the New Mexico desert in July 1945. That was the first atomic explosion and the scientists collected lots of useful measurements.

But the developers had no such measurements for the uranium-gun bomb as it hadn’t been tested. But how to get them? They obviously couldn’t place monitors on the ground at Hiroshima beforehand. Physicist Luis Alvarez was tasked with finding a solution. Alvarez’s team built three canisters filled with monitoring equipment and VHF transmitters to be carried by The Great Artiste, the observation plane that would accompany the Enola Gay to Hiroshima. The three canisters were to be dropped by parachute at the same moment that the Enola Gay dropped the bomb.

The signals from the canisters were to be picked up by a bank of Hallicrafters S-36 VHF receivers on the plane and then feed to oscillographs to record the results, which would simultaneously be recorded by movie cameras.

It all worked according to plan and data was received from two of the three canisters before they were engulfed by the explosion. But, to the best of my knowledge, no QSLs were issued for the receptions.

The WASP Museum

My next destination after Santa Fe was San Antonio, Texas, 700 miles (1100 kilometers) away. To make the road trip more interesting I wanted to find some things to see along the way. While perusing Google Maps I came across the National WASP World War II Museum in Sweetwater, Texas. The museum has nothing to do with insects. The acronym stands for Women’s Airforce Service Pilots.

The use of women pilots in support roles to the US Army Air Force began in 1942 with the Women’s Flying Training Detachment (WFTD) and Women’s Auxiliary Ferrying Squadron (WAFS). In 1943 the two programs were merged to form the WASP program and the airfield at Sweetwater was chosen for the four-month training program. In total, 1,830 women started WASP training and 1,074 finished, about the same success rate as with male military pilots of the era. Continue reading

Dan Revisits Radio Japan: A Half-Century Later

Many thanks to SWLing Post contributor Dan Greenall, who shares:


Running into an old friend

Hi Thomas

I was doing some random tuning on shortwave this evening using the KiwiSDR at VK2ATZ in New South Wales, Australia, when I came upon a repeating music box-like tune on 13705 kHz that I thought had a familiar sound to it. It was like running into someone who you hadn’t seen in many years and trying to place where you knew them from. Yes, the sound was a bit different, perhaps even a little slower (age does that ?), but then it came to me, could it be Radio Japan, the overseas service of NHK? A quick check at Short-Wave.info revealed this was indeed NHK World Radio.

It felt like I had found an old friend, one that I knew from my high school days over a half century ago. Still recognizable after all those years, and it felt good to know that they are still around.

Attached are two recordings:

Radio Japan, interval signal and bilingual ID, as heard in Ancaster, Ontario, Canada on 9505 kHz in 1970:

NHK World Radio, interval signal and sign on in Thai on 13705 kHz, January 23, 2025 at 2300Z (via VK2ATZ KiwiSDR):

73

Dan Greenall
London, Ontario, Canada